The InTENSity™ Twin Stim® III combines TENS and EMS therapy in one beautiful, digital device. The TENS has 4 modes (Burst, Normal, Mod 1, Mod 2) and the EMS has 3 modes (Synchronous, Asynchronous and Delay). This device is an industry leading 105mA. The Twin Stim® III comes standard with AC adaptor and is easy to operate.